Mining-machine.



W. F. THKTT'lH MNING MHNE APPLIQAHON FILED Mzmxzf www Mmm/111mm rfa. 1913.

l, 1 27,701 Patented Feb. 9, 1915.

R SHEETS-SHEET 1.

win/cieco Y\ @am W. F. TROTTBR.

MIME@ MACHINE.

APFLI. TiUN IILHI EY1, m 19117 RENEWED JAN, 2:1, 1913` 1,127,701. Patented m1194915.

6 SHEETS-SHEET 2` Q91 tu@ om 51H01 mud APPLICATION 'MII @LPL Nl lz'. kENEWll .IAN 9.3.1913.

1,127,701 Patented Feb. 9, 1915,.

e SHEETS-Smm' s.'

W. F. TROTTER.

MINING MACHINE.

APPLICATION FILED SEPT. zo, 1907. EENBWBD JAN,28,1913.

Patented Feb. 9, 1915.

W. F. TROTTBR.

MINING MAGHINE.

APPLICATION FILED sEPT.zo,19ov, RBNBWED JAN. 2s, Isls.

1 1 27,70 1 Patented Feb. 9, 1.915.

WALTER F. TROTTEE. OF CHARLESTON. WECI- MENTS, T0 THE JEFFREY MANUFCTURZL MIXING -TfIASHIN E.

Application filed September 20. 1907, Eeia No, S)

Y (Y EN i. .im 11MLA .wufivtvfl 1in viigzzge pofsitiwljc :xml :igilly u im tlm; zlizlinsa lu mw ,form nl' t'ww lnfim vuzwlxixs. ifm.' vkxmiflm u single wxltiimmus wlmi is [.lmfided luik-Jing 0110 mul fixen/l t0 am :xiiffliol m' the likfl in advance of the ma vlxvw :xml its inthe? 0nd ixvd 'm nu :mllmw 'ing device on the Pear sido uf the mzxc'xine. while. iiltelnlfffdiale its end@ .ilw chain prxsws ovm' sm'ovlt li-ive mwlxfmienw mi: the fm1- vline.

Mi' inuvntion, in thv pxefefiled form. mnrvneplntes ill use of mlulvs for' prnpelling und guiding; thv machine :nml if; intended to provide n machine in which nre m'ui'comv mtzxn Clismlmnluges and (lilf'ultivs that limo hm'etnfm'e been @Xpeliencvd in the pm' vulling und guiding m side Cutting ma- Clvimw. @smnllv in mom und pllm mining.

'Um nutlirv :mil :ill uf the vnl'iouQ obifft; nl' tls@ imvntion `.vill be umlmstoofl in (lfziil fvwm flw, following' description in www@ .rm with lw dmv/ings.

Specification of Leiters latesit.

glifmiga? :mXilim-v parte rmwlmfml when it if: ik to mvv the mitin!! :appm'ntm: ndvnncfxl into tlnwml iifivxaflixwly im 1li@ fave thereof.

The mfiin 'rfmwr muy lm of :mv suitable cmishnftinn ns fsu' am Sump features of my invvntiou fu'v mlf'm'nxl. lmt fm' reasons whirl! will lntm appear. I prefer n vnnstrucfirm of the Clzmnclm' shown. This con- .;ti\iction mmmigns: n, shoe .l adapted to rest Upon tlm around with freedom to slide freelv in nll flirmtirm longitudinally mx-:mged anglo bmw m' whites 2, Q secured to #nid Shop nt oitlwr' sill@ thereof :md a suit- ;wlvlr hlnt'form 5% vfting upon and secured to mid longitwlinnl sid@ lmrs.

L 4 nro webs or plates depending from fha plfxlffmm il :md cmrving! at their lower vnflQ flu ln'mfillv tur-nod lnngitndinnlly extending putting apparatus guides 5.a 5.

'lw main frame tlms constructed cons-tifutes n box which is closed on all sides @Kennt flic irwmr' nml mitm Nuls. It will lie wig smverl (m refvr'enre tn Figs. 3 :mel l Huit thu vlnt'form 3 extern-ls at its: outm mill lwfmfl.'V tlm bottom plate m' @lmp 1 und tlm? flipy inl@ plcih nreV cmfwwpmiflimflv mit :nvm: En ot'nm wovflsz. tlw mitm* vwl, nl' Hw iswi-r ilu?- ffirm mrt of the main fram. vii'rlwnz :inw sdlzmbly The Cutting :infiamma @nz-:mr tudinzily arr fihi lu'irrfoutul a' iluposei'l liaise pluto 3. t o longitiuliuiliy nrinngril horizontally ilgxiuwfl Atullio plntm. L nimm; Said bris@ plate unil #piu-Pil, thri'rl'i'om lo' the longituiiliunlli :irruugml liars ,lo :u to form a, chain guido .Y s i il, the parts inet, rcile'frffil io im Y l togulwr in :ii y suit :ilile manner, n@ lay rii'fts lift ll is :in infini spiorliut viliwl niountid upon u Wirtin-ul :ixlo El', mul lifxtnwn the inner ibn/l nl they lase pluri, C :xml i top plut@ 12 snitililv :ffrfurl to thv luis@ pluto :mil hir-:ing ou ouin zirfily extmiflu'zg rmirillv .i r ranged mrt iti' i" i. iai longii l The motor D suitably wuruil upon thvy platform 3 with fimzeturu :il't ll i 'ranged lougitudinu i oi" thi; fu'hino.

1st is :i lrmgtuflirmlly .':rmngeil shaft, preferably haring its :mis h-:f vertical longitudinal plum of tlm :mi: of tlm chain frzmw. It suitfililv mouutwl :it vitlur und in bowing, l/lf', l'l our: or' nlliffl; fnrriw'l hv n lifzzru. t-?uul1ril il 'wif slil'r f-em'wu'ml tu lie Dlntform il, "li i .f r f uulfzril llt tends: truiwr finir in vitlur l5 :i ivy shaft il :im (zuriii lo lille Slult 13,

l? iluzi'ol ifniuu infr: Slmi't lil uml' ilux ou (l imitan niczi uro to ilu lorry-r will oi illiw: mit unil tlu1 imwr "huw it suie witiii; t, "mme f ml curry l ot" .fini r l'rnnm iii'uinii liv ille ileor ,guirlus 5 'u tuuu# und :in 'fw base plate Sproeiwt ll fm lit-ing ur guul lngr liiliullf' suitnlilo rivustz'aicthm. supportoil from tu uw@ longiturliu: lli* aimingxwl (lepemling from thi: uranged to t snucfiglv urti nml the upper plate of the chain frame. The main fiume and the chain frame are normally lui-lil 'from longitudinal movexient rielative to noch other by mechanism indifatcrl im @ritiri-ty h 'y 24, which also serves usan mliustiug moans for moving the frames relativo to nach other to vnrv the tension upon the cutter chain. The adjusting mechanimi Q4 comprises :i longitudinally ur raiugswl sturen'-thromlml slm ft ill mounted nem' its iiuufr und in i hearing in a depending pluto hi/fh is Sccureil to the innr Qual of tho main fruiu plzitl'm'm 3. Nour its nutrir ruil it izw li tml into fi tlirezulfd nut :1G 'whioh urrfmgrl loetwuvn uy'irightuy or uujeuti'gms V :27 carried h i tlul has@ plut? G. The inner und oi this shui't iS squared as inrliofitnil it 2 l to rom-,ivo n Quimlflo wrench for turning the Shaft in either duration so as to extend the cluiin from@ relativo to the 1min fram? or to forro it in the opposite alirrrtion rflzitiiirly tliurizlo, :is fliitirvil.

is :i norm Your rigiillf.Y Secured to the lomitmlinfillv :wrnugwl Sliuit lil naar the inurl' mul thm-wt unil lmtwvuu thil bearing: .'siiulnril lll mi tlm guur u'lunl l5 socul'ed io ilu? unifi #huit L'fl is l shalt arranged h9- umili tu@ Snirl flluift ll :nul trzinsvr lr of the umiu iruuu. lt ifs .Quitnhli mouutml in :i keuring wrureil to the platform of the will l'rmuv. Si) is :i worm wheel Secured to tlm insiclo und of' tlw Suiil transverse shaft Z9 unil io mosh `with tlm norm :h ou tluk shalt 14.

:El is :i worin rigidlv Softurml .Cillo will of the VQhui't 39,

z is :i longitudinally urrnngforl shaft mounted nwer ritlr mul ol" tlir-y limi-ings 32.

.tho luther lining urislugml purullnl to the 10b toruur :iurl of hulistoutiully (lut :mum width :mil '-sviurfrl io tlm platform ot' the mziin traum. 'Thu :mis olE tliiA shul't 3'! is; iu :i Ver tir-:il longitudinal plums on thc, opposite Side of tlm wrtirol longitudinal plum of' th axis 110 nl tlvf` i-lizil't 'lil from armature Shaft ll.

'l :i worm u impl rigidly` socurod to the mitm nml of thv mtt i uml in mosh with ihn worm Ill ou illu trumiirrw, Shaft 29.

lfl is u spur gou! ,.osvl'i mounted upon tlm 115 slmit fulircunt, to flip hearing standard his, und i'-; u geur wlwnl ol' grvutfr rliumtur than the ,flour wlwol ZH und loose-lv iuounorl uji-on thv lwild shaft Si? adjacent to rim hearing' stamrlzirel 32'.

Jn iulimitffs :is un entirety clutch mechanism for ulluriminli' Conurr'ting the gears 34 :ind 35 to the shaft 232. Oi" this clutch mechanism 36' inrlicntru u longitu(linallpv movable @L :ramt Splinol to the shaft and carrying l2@ 'u l ul clutch jaws 86 zuluptefl to engage :uns "lb secured to the gear Wheel 35 u other and clutch jaws 36 adapted with the clutch jaws 36d carried wheel 180 to the out 10U indicates as an ent'r. mein for shiin-.g the me. the clutch 1n either directio ings 332 385, in, the. hearing .Y and 38@ .reslierliwV is on the opposit containing the axis of the slm it axis of the she-lit 39 a gear wheel rigidly secured to the shaft n eiir one. end thereof endin mesh with the geur wheel ifi-l on shalt and. 40 is a gear wheel of sn r diameter then the gear wheel 39 and Secured near the opposite end of tn sind in mesh with the gear wheel il' is a, Cal'fle Wind, A. y mount' ed on the sli-ift l and prefered v adjacent to the gear wheel JJ at the inner end thereof. Phe periphery e ne cable drinn may lie spirnlly grooten indi iterl at all to assist in the spoolizig upon it of i.: draft cable it which has one end suitably ifxstened to seid drum. The drum is preferably connected to the shaft 38 by means of a. friction clutch tl", one elementof which 1s a rin r or 4l are adjustable wedges or i .Y ranged between the sections of the rim zit scid slots and adapted to torce the periphery I:of the rim into engagement with the inner: Walls of the ring 41 in the well known man' ner. Byvzirying the adjustment ot' the ex ponders the clutch can be made to slip when the resistance to the rotation of the winding drum reaches any given amount.

4?; is a pulley or shenve arranged to rcociveand guide the calcio fil 'es it is wound upon or is, paid ont from the drinn Lll.

4Q a hearing hraclet secured to the plate 2 adiacent to the drum 41. 42' is :i lon gritndinzillv arranged shaft snitslily sopported hy the. laterally extending erin 4&2 oi? the seid bracket.

43 is an idler pulley on the shaft 42. When the machine is in exi-eration and is heingl advanced along tl 1 coal. this pulley guides the. draft cable while it is being wound upon the drinn. l

lVhen the machine is in oiiwration it is advanced along the face o' the coal by tension in the dro ft cable 4l due to the. rotation of the drum 4l. Under the :action of this forward draft, the outer end of the machine tends to swing forward relative to the critter frame because of the resistance which the coal offers to the advance of the cutter To overcome thisJ tendency and maint-:iin the machine in proper working position relative to the face of the coal, I use a cable or lietiblo holder for the outer end of the machine supplemental to the main drwft cable 44. :li fehle indicated at 56. One end is pal to :in anchoring device, such as n new jack on the rear side of the mar-hine and the other end is secured to a winding :neclmnisni on the machine. This prefhij.' comprises a rcel or drum 46 to which the end of the crible 56 is secured and which is riapted to permit ther nnwinding of the with the same speed as that at which the cable 44 is wound u on its drum 4].. This can be accomp ished by connecting the drum or reel 46 to the shafting ,l ing which f,ctuate the drum 41. For example, :t shaft 48 can be mounted in sui-t- =1hlc hcw rings, as at 48, 48", along the side of frame `ind to it power can be trans- ,ff-m the inner rcel gearing, as from ,i This shaft 48 at the outcr end is iminecrcd to the drum, either directly,

in c vthe desired speeds of the several im: "ll pernnt it, or h means of gearing. As n, i 1s provide. 'with a gear Wheel Tre slew has o, lange at its outer end rornied th ratchet teeth 4?. Between this llizogjo :ind the gear 49 is arranged the hol: of the reel 46. The reel carries n pawl 4S which engages ratchet 47 and is adapted, when in igagenient with the ratchet, to prevent rot on of the reel on the sleeve in one dire in. the reel being free to rotate i i the. other direction. A retaining plate 50" hol 3s the sleeve 49 in position on the hearing fili, A pivot pin 50' is carried by plate 5G" to receive. the forked. lower end of a pnwl lever 51. This lever is adapted to engage the ratchet teeth 4.6 on the. reel to rotaite the' latter. W ith devices of this character it will herv seen that under ordinary ciroumstfinces the two reels 41 and 4,6 can be in rrr-tation simultaneously to Apermit the rear cable section to be unwound with the same speed es that incident to thc Winding of the front cable section. At the same time, as will also he seen, the operator, by means of the hand lever 51, can., if he finds necessary, impart e, rotary movement to the drum 46 relative to the sleeve 49a, thus causing it to revolve more or less independently of the drum 41, and in this Way the length and the tension of the rear cable section can be increased or decreased accordingv to the angular adjustment desired for the machine, as :in entirety, in relation to its line of travel.

ln longwall mining an undercut is usualii.' easily started at a free face, but in room and pillar ivrl; an entering or sumping cut .nr-.ust be, ined@ in order to get cutting apparatus underthe coal, this entering cut being made adjacent one or the other of the ribs constituting the side Walls of the room. With my improved machine the sumpingr cut is made by feeding the machine longitudinally forward so as to proiect the cutting apparatus into the coal. For this purpose I have devised the combined jack and cutter mechanism guide E illustrated in Figs. 7. S. 9 and 10. 5t is a base plate of the said jack stand adapted to rest upon the floor of the mine close/l)7 adjacent to the coal tace and at an angle thereto, as shoivn. car either end of this base plate is a pair ot' upwardly extending arms 0r lugs 55 supporting between them a shaft'or pivot 5G with its axis arranged longitudinally of the hase plate.

5T indicates the jack proper comprising a shank or har 57 forked at its lorrer end as indicated at 57, the ends ol each arm ot said fork being recessed as indicated at 5T" to fit over one of the shafts 56 on the base plate. The upper end of the jack shank is screi'v threaded at 57 to receive a screw threaded hand adjusting wheel 58.

59 is a pointed head for the jack swiveled on the upper end ot' the jack 5T and bearing against the upper face of the. hub of the wheel 5S hy means of which it is adjusted longitudinally of the shank.

5l is an arm or plate extending laterally' from the hase plate 54 and carrying the up right bracket il which at its upper end is hifureated as indicated at 54" to receive one. end of a swinging arm (i0. which is pivotallv connected tothe upright 54 bv means ot' a holt 30. At its t'ree end the arm ('i'l has pivotallv .fonnected to and dependingl from it a slide lil which is longitudinallv urooved at either .side to receive the adjacent longitudinal guide hars 12b on the chain l'rrrnc. These guido hars 1Q are rigidlyy secured in position h v means ot' bolts lt!" screuihreadcd into inijfardlv projecting lugs 1Q carried b v the hase plate. (i of the chain Vtraine.. 'l`he slide il niav be introduced into position within the said top plate at the end.v of the guides lt!" adjacent the main lranic. rl`he slidalile Connection between the slide il and the cutter frame permits the lon'e'itlulinal movement of the cutter ll'ranurelative to the .slide while tendiner lo preient the. lateral movement. in either direction ot" the c'u'tar trame relative to the hase plate .'i-l. It, u'ill thus be seen that when' the i'ack stand is securely fastened in position h r means of the jack 5i', the cutter frame ma)7 be caused to travel t'orivard in a suhstantialhr straight linie. When the slide lil reaches the ends of its guides 1Q" it mav be swungr upwardly out of the path of travel of the cutter frame.

'To operate the machine for room and pillar Work it is unloaded at the corner of the room where it is desired to beginthe cut and with the end of the cutter frame closely adjacent to the faceof the coal. The combined jack and cutter frame guide ll is then clamped securely in position on the left hand side cf the cutter traine near the end thereof, as indicated in Fig. 10, the slide (il having' been introduced into its guide in tbe top plate of the said frame. ll`be cable 4l next carried inward from the drinn 4l along the side of the machine to the inner end of the jack frame and pivotally connected thereto. as indicated at (3:1, a suitable idler :raide 6? serving to direct the course ol" the cable from the drum toward the said jack stand. This idler Ietuide n?, is mounted on a journal (il carried by a U -sbaped bracket (35 which is pivotally mounted on a longitudinal shaft G6 carried b v lifes (3T. (37. liroiectiiner laterallyv from the'man frame. 'l`he U-sbaped bracket G5 has a laterally ex tending lug" or projection G5 which is adaptA ed to engage with the platform ol' the main l'rame to limit the inward tra wl he bracket (35 about the axis, ol. thc shaft liti. as indicated in Fig. (3. 'lhe bracket h5 ma)y he readily detached by removing: the shaft (lo. whenever it not desired to vuw the idler guide (S 'l`he motor having' been started. the cnt" ting' apparatus and the .slow-leed gearing ot the winding' drum are then colmected to the motor hv clutches 1S and :lf3 resinctively. 'l'he drum ll winds up on the cable and pulls the main frame ot the machine toward the coal face. the cuttingy apparatus simultaneously undcrcutting the coal 'The cutter lrame guiding' mechanism lends to insure that the cutting apparatus will be moved in- `tard in a substantiallv slraight. line. lVhen the slide (il reaches the ends ol theguides IZ it is withdrmvn therefrom and the inachine will l'ced inn ard 'without further lguiding. 'Vlie sumping cut harinar been completed. the machine is toppeih the froide incl-t ll and the idler guide ti reinoicd. the [eed calde `l l evtcndrrl to the l'ar ril and secured to :in anchor or jack 51?. and the loose' end of the cable 33 secured lo an anchor or iach 5T adiacent the rih at uhhh the cut is started. .'"ee hij. ll. lfhe minor is now Ftartedand clutches and lii closed so as lo driie the cutters and the Windingr drum ll and permit theI rotation of the check or retardin;r dru'nrti. Ordinarily ythe Winding drum is driven through thel slonY speed rearing when the cutters are at 'ivm-k. the.

high speed .Hearingr heini,r used when the propelliineY cable is employed to move the machine about. in the room. The 'rotation of the winding drum `l1 creates tension in the cable #i4 tendinev to advance the machine alongY the face of the coal. Under the action of the draft of the cable 41 and the resistance which the coal oersfto the cutters to iii inte oi rourion of the front winding drinn il, .:iblv tin, gearing conneuiiouf which thm controls; the romfi n of lie vl Li. imm 4oz: 'o sonido: f account olf tlm roniiiw dimm iur ol" tlrwl two drums yll. and 46% iimt :Tho mim Sli is mid ont at tile sume sito inrit lli@ cubic #li limon in. 'lling` it the pronelli .5 and guidingr :iiiiioterl to maintain tile nia; n mgl to the fno@ :w the nnvili ,be sa-gon nwrimiimii i" chino at ii ivm-aft .r1 it lliifsanno Simo. it i@ oosolivomi ringo ilu? ingle oiA ille ini` winni' lo il .fn n oi viae coal Wlionovcr iris :lef to omi Ling varying coniitions olf ti 'muvriwl being' cui. the Hoor of the mini-, otr. Plima, ii' it', is dcsil'ed to angle Liao omer @mi oi the nnicl'iine rearward, the rntrnoti lever 5l man bn implied to the check drum #i0 to rotntc it more or leSs in the direction orlosiie to tloiii *which it turns in nnjii'ig oufJ tho cable, i drawing the outer rnfl oi' the machine rcnrwird. Such a movement ol tin: outer end of the machine can7 of coni-Se, be cliivcted with. thii least ellort il the motor is stopped, or tin? driving clutch 36 openod. 5o us to @ooe the tension in the propelling cable. Un alle other hond. if it is de ivf-wl lo :infile (lio @nier end of the machine iov-faro rclaiio to the. inner ond. this can bjr iliffriigalgfinjl, ythe porri l5 and inf reni iii Lo nrn relative to the o my out tinc-,lol more ring 'ini-:zii conrois lie .arm y1:6 would normally f to the propelling :i5 adoptcii to moim i rivoli :ingle to tile om noun, ltowovcr. l ixoiiiiriiiesl oi great den ormonnioreil lily tho it iin I firmo lirive omnia'. When I uit resislnnoc, ol' inw-o i'iiirt or 7n is cutter,

gifrogueiling roei i -zof lleroiiggli tile friction zo lip when iir roaches im),

Such incr msod resistance. if sufficiently gre-at, will refsnlt in slipping@ bomcen in piirts of tlm iricion clutch li So tl'mt iii winding rcel il is 1li-iwan :it a slower sfpocil. Thus, tin*l advance of thc nmoliine is retarded und ilun criticize are given :1n opportunity to ein: through tbc border material. lt will be observed that when the drum 41 is driven ai, slower spoed by reason of the slippage of the clutch. the outer retarding drum 4G will continue to rotate and puy ont the returding subie fili iin lle sume nite as boforc. Tiros, il il.x the slippage is occurring, the onor end of lie machine is permitted to gmflnnllv swing forward relativo to the inner en when this swinging of the machine has oontinuod for a little time, it can be stopped and the outer end swung rearward again by means of tlm rajnhet lever 51 in the manner previously described. This swinging for wurd mid backward of the machine is often of great advantage in cutting through hard foreign materials which are, in many in the form of noduies yor boulder liliebodics. For vexiiunplo, if a, sulfur ball, lying in some distance from the face, is encountered by the cuttors the moronifznts of the machine will be :1S above clonvrilieil; that is., the increased rnlislnn'ce to ille cutters, assuming that .it is sniliuiently great', 1will result in the slippage of the clutch which drives the reci 4l per initting the cutter bar to advance more slowly while the outer end of the machine advances more rapidly. As the outer `and of the nfiacliinc swings forward, the angle of attack of the cotton; is constantly changed :imi then. when ilnouter ond of the machine i@ swung ze:ii.-':ir l in tbc manner described, Haare i y :i further motorini change in the anglo of :1MM of iin: olitier, nfl this fncili- 'mich tho smiling iiccanse tends to loosen the sulfur mail or nodnie und break it ont. ciiliout icnitinv' entire@ through ii. ln all of thesis Advancing and swinging movements of the mooi inV it is free. to sli-lc in :my dirontion over the floor ol" tho mine` and in nsml prno'icc this froe movement of the num-inno 'facilitated by the use of lat lli wi i be understood that. the friction olncii i I con be sot to give Way under any "iiliin fr reasonable range fili-,1t the ne 'mn be rondo to cnt. tnr Ugh minor itin;v or lmrcl s-,trcnlis without, Slipprg, r in Some deposits of coal` impuri- Y i-izwoiantil'edwhich :iro of Coeli grant Morino or so eXtC-nsiw Limt it viii fo attempt to cnt through elses it, is possible to Carr)7 the undercut over or under the ohstruction, :intl nl r iniiiroreil machine la well adapted to 'work under auch conditimie, Thus, il a roil encountered it may he found possilile to haelt the machine oil' along' the face to a suitalile (lr-lianes from the oir struction unil then hy lilorliing nix the hiliiils? which.y as prmiously noted arecommonly used with auch machines. the cutters may la.: guided in an uiivawlly inclined path over the obstruction anti then grailnall)v downward again 'to the normal level u fh a handling of the machine :te this reatly facilitated in the case ol' applicant s machine hy the fact that the ii'iniling drum and guiile Sheave with ulrich the fetal or propelling cahle enbfages :intl also the outer drum 4t with which the. clieeli cable Si) engages, are all mounted to turn upon horizontal a so that the cables do not interfere with the free tipping of the machine about its longitudinal axis.

Reference has already been made to the boxdile construction of the main .traine of the machine.,` This I regard as a feature of much practical importance During the cub ting operation the tine coal or slack which is formed is dragged out; of the kerl by the cutters and must be handled or disposed of: in such a way as not to clog or interfere with the cutters or other working parts of the machine. -In my improved construction this fine coal is drawn into and outward through the hox-like main frame to the outer end of the machine by the cutters. There as the cutter chain rounds the driving sprocket wheel, the line material falls either quite clear of the machine it advances, or, if it; .is not delivered entirely clear of the machine, it is possible for the machine runner or his helper to readily shovel it away .he-- cause the cutting away of the side platee ot' the frame at the outer end thereof lean-s a free space adjacent the driving eprnrloft Wheel and beneath the upper platform part' of the frame which permita really am? ifl`e tive use of the shovel for the pinfpoee elated, Furthermore, it will he oheerred that aith the exception of the eutters anti the ripiof'hvt Wheel which drives them. all ole the working palta-genre, windingdrluns, clutches. ino*- tor, etc-mare mounted ahore thA upper platform part of the traine so :isto he 'l'silly protected from contamination with the lim` coal or slack which cannot rise and enter any ol' these working parte during itsv pasA Sagre from the tace outward to the point where it delivered hy the cuttersv l'ree ol the ma :hin-fi. In this connection it will he olieerietl tlmt practically all of the 2 Shafts :unl clutehe; eonetituina the ir Y meclirinien'i are grouped romiiactlr e het on one part of the tran-e plat orrn while the motor occupies another part. his arrangementof the motor and the driving gearing ol the operni under n ally' the lion that the i'iiiiraton in mailing ont along' the lave rvouii'l hr M saine in longwall nulliy j Ordinarily in longwall unning it ia not nwe ti, nialw :in entre i@ or uinirinfg #nt lift f the cui van lit mail :it a im 'la-xr@ .Heldin :l :nifl 5'. l have Shown ni he twinsnntrefi' to ,n iiyininf nm,- chine trui n upon nl: infif'liine Ina)v he mounted. i t iiurpoee of propelling the 'iii rl`liig-3inechanion! eomtririees :1 tf'firwrerwii arranged :,halt G8 in axial :,ilinerfieizi with lh-e trani;- i fri/i'. of Minchia@ Shaft Filled uno a, levees or? in the le end of the lt t. Wi v n poitive clutch one element ot .Yhieh till" i@ -xecmerl to the shaft *if* and the other element lill is carried hf: the iniile nd olf the Shaft nel, "he Shaft l i; euital'iljv .Qumiortetl on a hearing 7() Seeuretl 'to the main traine, Tl is a Sprocket wheel rigidi;r` secured to the nutrido enti of the shaft l'il and ailfviterl to he conneijrteii with the i'iroijielling ineel'muem on the mining machine triiclr. when not rrquirecl in use the szhalt il ning: he irusorefl from the nia/chine by tlraffing it longiuili- .oally out from the hearing it).

lYhen the machine to he inoveil lrmn place to place in the ina the m'oiwlline' and rrtareiiiig: (fehle -lt :nifl Titi are nii-:intl np on their wok Vil, .mil il', that the in iC ."efluwwl to :i onlin-v? iiorrn liv-h van he coinrnientli' lianiilml :intl mowtl alioui. in thi raw of wrio in Shines; in irliirli low-e rufle'l fn o" mhh'-` are eniiiloyei'l. freu ifi/om n cori haa heen experienwil "u hanilliiig the machine@ when they wei e to he m'wurl ahout in the mine, liiu in the cro-"e ott inf, machine thi@` ineon'ren i ence ifs ohi'iated.

ln the foregoing (leef cater that the ang Vigilio!! lV hare indiV v ol the lnizffliinc in re lation to the t i e elltrt or increasing; or fief anteilig' the length of the rear cr'hle Section li'r the wie i l' the manual 1li ricca; lint, it is to he oliserrecl that the an- ,fling of the machiniif;alira'acharacterized hij a change in relation io the machine of the line# along; vvlueil they limite ol the cable Section.c are ctertetl on tin machine Hoe: #rein while l oneA iler orwell the tiret to produce i: iufwhine of the clam: in Question haring :ruff lifml of in'oielinfg aut/l guiding Cable svstern presenting a section of rahle arranged to exert a forward draft on the the inner part of the main frame of the ma chine and a section of cable arranged. to exert a reainvard draft ou the outer part oi" the main frame, together with meant., mounted on the machine, for varying in rw lation to the machine the lines along whirh the drafts of said sections of sable are erted thereon, l do not in the presen? ai, cation make broad or generic claims to Vm:` feature inasmuch as such Claims are included in my co-pending application. Serial No. 684,221, originallytiled September 30. 1906.

The Construction of the devientl 'for rieet ing the sumping out, as sheen and described, is such as is set forth and claimed in the application filed by me September Q0, 1900, 'Serial No. 335,453; and l do not herein present claims for any of the said matters of construction, the claims herein relating to the construction and arrange-v 'inent of "the .parts by which the machine propelled undguided or adjusted in -its positions relative to the 'coal and reiative 'tox its line off'travel.

'What I claim as my invention is:

,1L The combination `oi a main freine, cuttin apparatus carried thereby, a winding 'ree on the main frame, a ea' on said reel for propelling the machinA when it lis in operation and adopted te be fastened to a stationary' holder in sdram-e thereof, and a guide, mechanism having a cable seotion adapted. to exert on the outer end ot' machine a tension backward, a real. on main frame l'or Winding and unwind the last said cable, power devices ior the last said veel conneoted 'to the devices for the iii-st aloft adapted to permit rotation ot said reels independently of the or 'y av single motor on the main frame for driving the cutting apparatus and both of the .said reels, substantially as forth,

Q. The combination of a niu frame, Crtting apparatus carried thereby. z. reel on the main frame at the in.' i thereof, prayer transmitting de ro tilting the said reel, a cable on the reel i'oi propelling the machine and ada 'ited to be fastened to a stationaryY holder in advance thereof, a second crible (attending from a stationary holder at the rear of the machine, a reel ou the outer end oi' the for the said. second rahle, a dM second reel adapted to be connected to and disconnected from the power transmitting devices ol the first aforesaid reel, und a motor ou the main frame adapted to aoiuate both the cutting apparatus and the trio winding reels, substantially as set forth,

Si The combination of a main frame, out tin apparatus carried thereby, a winding ree on the main frame, gearing for driving the said reel. a motor behind the said the iup,r

reel and Vgearing); and connected to drive the same. a supplemental cable secured at one end to n stationary holder in rear of the iiifieiiizn, a winding reel for the supplemental eatin iu rea" ot' the motor, and power transmitting (faires connecting the last said reel, with the gearing of the first aforesaid reel, suastautiaily as set forth.

et 'll he combination of a main frame, cutting aizmratus carried thereby, a winding ret-l on the main frame, a cable secured to lsaid reel ind adapted to be fastened to a stationair)v holder `in advunoethereof, two trains of diiierently speeded power transmitting devices for the said reel, -a Supple rental vaille, adapted to be secured to a stetioi-lry holder in the rear of the machine, a second winding reel on the main Emme for said cable, and means for driving the said second reel with either of several speeds respectively corresponding to the speeds of the first aforesaid reel, substantially as set forth.

IThe combination ot' a mein frame, cutting apparatus carried thereby, a Winding reel on the main frame, a cable on said reel for propelling the machine when it is in operation and adapted to be fastened to a stationary holder in advance thereof, and a guide mechanism having a cable section adapted toexert on the outer end of the ma chine a tensrm haoku'ard, a reel on the main frame for Winding and unwinding the last seid Cable, a motor on the main frame, and dririrHY sonni ions between the motor and said reels for tnruii j the latter in definite relation to each other or in optionally variable relations, substantially as setforth.

The combination of u main frame. cutting apparatus oarried thereby, a Winding reel. mounted on the main frame, a cable secured to .said reel and odaptedto be fastened to a stationary holder' in advance of the ma chine, means comprising a speed changing transl on mechanism for driving said winding reel, a supplemental cable adapted te he secured to a stationary holder in the rear of the machine, a serond Windingr reel on the main frame to n'iieh said cable is secured, and means for driving said second reel in unison with the first reel at whatsoever speed the latter driven, substantially :is set forth.

i', The Combination of a main frame, cutting apparatus carried thereby, a. Winding reel on the main frame, a cable secured to said reel and adapted to be fastened to a stationary holder in advance of the machine to propel it, a second winding roel mounted on the main iframe, a retarding cable secured to said reel and adapted to be fastened to a stationary holder in the rear of the machine, means adapted normally to causav the rota tion of the retarding cable reel in unison with the propelling cable reel w .reby the isq retarding cable is normally paid out at the same rate as the promlling cable is drawn in, and lmeans permitfmg a rotation of the retarding cable reel relativel to the propelling cable reel to vary the angle of the inachine te alle face ot' the coal.

8. The combination of a main frame, cnt tins; apparatus carried thereby, a winding ree on the main frame, a pro ielling able having one end secured to other end adapted to b'esccured to a stationary holder-,in advance ot' the machine so as to exert' a forward draft on the inner end of the main frame, a second reel mounted on the main frame, a retin-ding cable having one end secured to said reel and its other end adapted to be secured to a stationary holder in the rear of the machine so as to exert a rearward draft on the outer end of the Inaohine. power device` for driving the aforesaid reels. and imfans on the machine frame for variably controlling the rotation of the second named reel to pay out the retarding cable as the machine advances.

il. The combination of a main frame, cut- `VLing apparatus carried thereby, a winding reel on the main frame. a propelling cable secured to said reel and adapted to be fastened to a stationary holder in advance of the machine. a second reel on the main frame, reta rding cable secured to said reel and adapted lo be fastened to a stationary holder in the rear of the machine. a motor on the main frame, and driving connections between said motor and the twov reels to cause their simultanefiius rotation for winding,r up the propellingr cable and paying out the retarding cable, the driving connections for one of said reels being yieldabic.

sai(y reel and its 10. The combination of a main frame, cutting apparatus carried thereby a winding reel on the main frame, a propelling cable secured to said reel and adapted to be fastened to a stationary holder in advance of the machine, power devices comprising a yieldable driving connection for rotating the said reel, a'second reel on the main tiranni, a retarding cable seemed to the last of the machine, when desired, can be swung` rearward.

11. In a mining machine the combination with cutting means of flexible guiding means comprising a pair of flexible guiding members connected each to a lixed support, one on the advancing Yside of the machine andtheV other on the receding side thereof and connected to the machine, one near the ivall or cutting end and the other nearerrthe opposite end thereof, a winding drum for said first named guiding member, a winding drum for said second named guiding member, drum clutching and unclntching means,

turning one drum and means for manually independently of the other.

in testimony whereof I aliix my signature, in presence of tivo Witnesses,

WALTER F. TROTTER. Witnesses F. L. SESSIONS, C. E. WALBOM. 

